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  • Review
    Yang Liu, Lei Ting, Pei Jian*, Liu Chenjiang*
    Progress in Chemistry.
    Organic micro- and nano-materials is a kind of novel material system, possessing a good many features of traditional bulk organic materials, and exhibiting unique physicochemical characteristics due to size effect. Thus they have attracted more and more attentions in recent years. In comparison with traditional inorganic micro- and nano-materials, organic micro- and nano-materials possesses some merits such as unlimited choice of building blocks, low-cost, ease for large-area fabrication, and they have been applied in organic field-effect transistors, organic photovoltaic solar cells and so on. In this paper, we summarizes recent development of organic micro- and nano-materials. Using the concept of supramolecular chemistry, we discusses molecule design strategy and growth mechanism of organic micro- and nano-materials, and their applications. Contents
    1 Introduction
    2 Molecular design strategy and synthesis
    2.1 π-π interaction
    2.2 S-S interaction
    2.3 Donor-acceptor interaction
    2.4 Hydrophobic interaction
    2.5 Hydrogen-bonding interaction
    3 Controlled growth and growth mechanism of organic micro- and nano-materials
    3.1 Internal factors of the organic micro- and nano-materials growth
    3.2 External actors of the organic micro- and nano-materials growth
    4 The applications of organic micro- and nano-materials
    4.1 Organic field-effect transistors
    4.2 Organic photovoltaic solar cells
    5 Conclusion and Outlook
  • Review
    Long Jinlin, Gu Quan, Zhang Zizhong, Wang Xuxu
    Progress in Chemistry. 2011, 23(12): 2417-2441.
    Baidu(4)   CSCD(1)        
    Surface organometallic chemistry (SOMC) is an effective route to design and prepare surface metal species with well-defined composition and molecular structure. Synchrotron radiation X-ray absorption fine structure spectroscopy (XAFS) technique is currently a powerful tool to characterize geometrical structure of active sites of solid-state catalysts. Their combination provided a method to design and construct in molecular level catalytic active centres, which was established to be one of the important goals in the field of heterogeneous catalysis. This article reviews the recent advancements in construction of single-site active metallic centre in the channels and cages of zeolite molecular sieves by the SOMC method and in characterizing geometrical structure of active sites of heterogeneous catalytic materials with XAFS, the physical fundament, experimental methods, and data analysis of XAFS technique and its merits and demerits in characterization of catalytic materials, the chemical fundament of SOMC. Single-site mononuclear or polynuclear Ti, Cu, and Fe active centers were successfully constructed in molecular level in the channels and cages of zeolite molecular sieves by the SOMC method. Their micro-structures were characterized in detail with XAFS combined other spectroscopic techniques and their catalytic properties were evaluated. The catalytic nature of these metallic centers was elucidated by establishing the inherent relationship among structure, activity, and composition. The study results revealed in molecular level the pyrolysis mechanism of Cu 2 over the MCM-41 surface, and showed a novel route to prepare CuO, Cu2O and Cu(0)/MCM-41 materials with well-defined composition and micro-structure, clarifying the hydroxylation mechanism of phenol over copper active sites and the nuclearity-dependent catalytic function of iron-oxo species; based on the binuclear diiron clusters with well-defined structure and composition constructed in molecular level by SOMC, a novel selective catalytic reduction pathway for the iron-catalyzed NO-HC reaction was proposed; a novel concept of “surface photoexcited catalysis model” for Fe, Ti contained zeolite molecular sieve photocatalysts and N-doped TiO2 visible-light photocatalyst was proposed in terms of the local structure of photoactive species identified clearly by XAFS technique. Contents 1 Introduction 2 Chemical fundament of surface organometallic chemistry 3 Basic fundament of XAFS 3.1 Physical fundament of XAFS 3.2 Data analysis of XAFS 3.3 Main experimental methods of XAFS and its merits and demerits in characterization of catalytic materials 4 Chemical construction and characterization of catalytic active centers of solid-state catalysts 4.1 Molecular construction of photoactive Ti centers on the surface of MCM-41 molecular sieves 4.2 Molecular construction of highly-dispersed copper active centers on the surface of MCM-41 molecular sieves 4.3 Spectroscopic identification of photoactive centers of HZSM-5 zeolite with trace iron impurity 4.4 Molecular construction of iron active centers confined in the supercages of HY zeolite 4.5 Brief summary on the construction of active centers with surface organometallic chemistry 4.6 Identifying the photoactive N species of N-doped TiO2 visible-iight photocatalyst with NEXAFS 5 Conclusions and outlook
  • Review
    Progress in Chemistry. 2010, 22(10): 1921-1928.
           

    The popularity of ionic liquids has significantly increased over the last decade. Among reported studies on ionic liquids, the preparation and application of supported ionic liquid are of great importance due to the combination of both advabntages of  ionic liquids and those of hetergeneous support materials. The viability of this concept has recently confirmed by many studies which have successfully supported various ionic liquids on the surface of porous silicas and explored their potential applications in various fields. The  preparation of these compostes was mainly achieved by using two kinds of silica-based materals,namely  xerogels and ordered mesostructures,via two different immobilization approaches of covalent  attachment and simple deposit. Utilizing and application of ionic liquids/porous silicas associated with dual advantages is an attractive research direction, recently. In this respect, the recent research progress on the objective composites are summarized on the basis of the effectiveness of the synthesis pathways. Meanwhile, the potential applications are also prospected.

    Contents
    1 Introduction
    2 Preparation and applications of supported ionic liquids/silica-xerogel catalysts
    3 Preparation and application of supported ionic liquids/OMS(ordered mesoporous silicas) catalytic materials
    3.1 Directly used as catalysts in various reactions
    3.2 Supports for active metal nanoparticles or metal complex
    4 Conclusions

     

  • Review
    Cheng Chen, Zhiqiang Dong, Haowen Chen, Yang Chen, Zhigang Zhu, Weiheng Shih
    Progress in Chemistry. 2018, 30(6): 775-784. https://doi.org/10.7536/PC171105
      CSCD(7)        
    Photonic crystal is a dimensionally periodic dielectric structure that exhibits a photonic band-gap (PBG). The theory of photonic crystal (PC) has been put forth for 30 years, and many achievements have been made based on theoretical and experimental research. PC materials inhibit photons from propagating for a certain band of frequencies with the fabricated PBG comparable to the wavelength of light, which have attracted more and more research interests due to its excellent properties and potential functional applications in optical, electrical, thermal and magnetic aspects. Furthermore, more and more efforts have been devoted to two-dimensional photonic crystals (2D PCs) due to their unique properties. In this paper, the characteristics of 2D PCs, including the preparation methods such as self-assembly, etching, and multiple-beam interference method, as well as its development status in waveguides, optical fibers, sensors, and terahertz technology in recent years are introduced. These developments show that the 2D PCs have great potentials as metamaterials. The future research focus and development direction of 2D PCs are prospected at last.
    Contents
    1 Introduction
    2 Characteristics of 2D photonic crystals
    2.1 Photonic band gap
    2.2 Structural color and diffraction characteristics
    2.3 Photon localization
    2.4 Negative refraction
    3 Preparation methods of 2D photonic crystals
    3.1 Self-assembly method
    3.2 Etching method
    3.3 Multiple-beam interference method
    3.4 Other methods
    4 Applications of 2D photonic crystals
    4.1 Sensors
    4.2 Waveguides and integrated circuits
    4.3 Optical fiber communication and terahertz technology
    4.4 Other applications
    5 Conclusion and outlook
  • Review
    Tang Shouyuan Xia Zhining Fu Yujie Gou Qian
    Progress in Chemistry. 2009, 21(05): 1060-1069.
    Baidu(3)        

    Microwave spectroscopy is suitable for studying chemically and physically very interesting molecular systems, including weakly bound complexes, radicals, ions, and other transient species. Information on molecular structure, internal motions and intermolecular interactions are easily obtained. Advances and techniques of microwave spectrometer are outlined in this article. The instruments developed, including microwave absorption spectrometer, pulsed nozzle Fourier transform microwave spectrometer and chirped pulse Fourier transform microwave spectrometer, etc. are described. Complimentary techniques in supersonic expansions, external applied fields with Stark modulation, fast scan, chirped pulse and double resonance are reviewed. Pulsed nozzles with heating system, fast-mixing, electric discharge and laser ablation are discussed. Meanwhile, the applications and developments of microwave spectrometers in the field of analytical chemistry are also reviewed. Finally, future trends of microwave spectrometers are prospected.

    Contents
    1 Introduction
    2 Principle and structure of microwave spectrometer
    3 Techniques in microwave spectrometer
    3.1 Microwave absorption spectrometer
    3.2 Fourier transform microwave spectrometer
    3.3 Double resonator techniques
    3.4 Chirped pulse Fourier transform microwave spectrometer (CP-FTMW)
    3.5 Microwave spectrometer for chemical analysis
    4 Conclusions

  • Review
    Liu Tao, Sun Lining, Liu Zheng, Qiu Yannan, Shi Liyi
    Progress in Chemistry.
    Rare-earth upconversion nanophosphors (UCNPs) have attracted significant attention benefited from their unique properties, such as strong photostability, narrow emission band, long fluorescent lifetime, high chemical stability, and low potential cytotoxicity, etc. Furthermore, being photoexcitable via continuous near infrared (NIR) radiation renders them superior performances, such as great light penetration depth, absence of photobleaching and photoblinking, lack of tissue autofluorescence, and less harmful to biological specimens. Recently, startling research interests have been ascribed to UCNPs, especially fluoride hosts-based UCNPs which are most efficient known to date, among various even interdisciplinary sciences field. Herein, recent synthesis and surface modification methodologies are outlined and summarized. Then the latest advances on research and applications of UCNPs are highlighted and reviewed, including immunoassay, bioimaging, drug delivery, photodynamic therapy, photothermal therapy, light induced switching, data storage, and solar cells, etc. Contents
    1 Introduction
    2 Synthesis methods of UCNPs
    3 Surface modifications of UCNPs
    4 Application progresses of UCNPs
    4.1 Biological applications of UCNPs
    4.2 Non-biological applications of UCNPs
    5 Conclusions and outlook
  • Review
    Qiangqiang Hu, Heze Guo, Hongjing Dou
    Progress in Chemistry. 2020, 32(5): 656-664. https://doi.org/10.7536/PC190929
      CSCD(4)        

    Zeolitic imidazolate framework-8(ZIF-8) is a class of porous crystalline materials formed by the self-assembly of zinc ions and 2-methylimidazole. It shows potential advantages in encapsulation and transportation of functional materials owing to its high porosity, large specific surface,convenient synthesis and controllable size. More importantly, ZIF-8 is an ideal carrier for drug delivery and release due to its excellent biocompatibility, stability under physiological conditions and responsiveness to the weak acidic environment associated with malignant tumors and other diseases. In fact, the small molecular drugs(doxorubicin, 5-fluorouracil) and biological macromolecules(antibody, nuclein) have all been loaded into ZIF-8 for chemotherapy, photothermal therapy, photodynamic therapy and biosensing. The particle size of ZIF-8 is very important for biomedical applications, and accurate functional regulation of ZIF-8 is agreat challenge for its biomedical application. Herein, we review the synthesis methods, size-control and biomedicalapplications of ZIF-8.

    Contents

    1 Introduction

    2 Synthesis of ZIF-8 nanoparticles

    2.1 Solvothermal process

    2.2 Microwave-assist

    2.3 Microfluidic

    3 Size control of ZIF-8

    3.1 Formation mechanism

    3.2 Size control

    4 Biomedical applications

    4.1 Application in tumor treatment

    4.2 Application in bioimagings

    4.3 Protective coating for biomacromolecule

    5 Conclusion and outlook

  • Review
    Wang Keyi
    Progress in Chemistry. 1996, 8(02): 98.
      CSCD(8)        

    Glycobiology is the last important frontier in biochemistry. Complexity of carbohydrate research is due to the variety of the structure. In last few years, the determination of carbohydrate structure, especially the carbohydratemoiety of glycocon jugates has been developed rapidly. On the other hand, owing to complexity of structures, carbohydrates become biomolecules carrying large amounts of information. As informational molecules, carbohydrates play essential roles in living organisms, including determination of antigenecity of molecules and phenotype of cells, recognition in many physiological and pathological events, and as signals of dynamic regulations and of regulation on time and space.

  • Review
    Tao Zhanliang Chen Jun
    Progress in Chemistry. 2009, 21(09): 1945-1953.
           

    Hydrogen is an environmentally cleaner source of energy, hopeful to replace carbon economy. The availability of feasible methods for hydrogen storage is one of the keys for large scale application. In recent years, solid materials most actively investigated can be regarded for their high hydrogen storage capacity and good reversibility. As a result, many new hydrogen storage materials have been developed. Among them, one of the most promising systems at present is metal complex hydride, which MAlH4(M=Li, Na) as a typical alanate. In this paper, the recent studies on MAlH4(M=Li, Na) as storage hydrogen materials are reviewed. The hydrogenation/dehydrogenation reaction, hydrogen storage properties, reaction mechanisms, theoretical calculations and remaining problems are discussed. And the development trend of MAlH4(M=Li, Na) is also introduced.

    Contents
    1 Introduction
    2 Properties and structures of MAlH4 (M=Li,Na)
    3 De-/rehydrogenation of undoped MAlH4 (M=Li,Na)
    4 De-/rehydrogenation of doped MAlH4 (M=Li,Na)
    4.1 Dopants and doping methods of MAlH4 (M=Li,Na)
    4.2 Catalysis mechanism of doped MAlH4 (M=Li,Na)
    4.3 Theoretical investigation of MAlH4 (M=Li,Na)
    4.4 Kinetic properties of doped NaAlH4
    5 Summary and outlook

  • Invited Review
    Pengbo Han, He Xu, Zhongfu An, Zheyi Cai, Zhengxu Cai, Hui Chao, Biao Chen, Ming Chen, Yu Chen, Zhenguo Chi, Shuting Dai, Dan Ding, Yuping Dong, Zhiyuan Gao, Weijiang Guan, Zikai He, Jingjing Hu, Rong Hu, Yixiong Hu, Qiuyi Huang, Miaomiao Kang, Danxia Li, Jisen Li, Shuzhen Li, Wenlang Li, Zhen Li, Xinlin Lin, Huaying Liu, Peiying Liu, Xiaoding Lou, Chao Lu, Dongge Ma, Hanlin Ou, Juan Ouyang, Qian Peng, Jun Qian, Anjun Qin, Jiamin Qu, Jianbing Shi, Zhigang Shuai, Lihe Sun, Rui Tian, Wenjing Tian, Bin Tong, Huiliang Wang, Dong Wang, He Wang, Tao Wang, Xiao Wang, Yucheng Wang, Shuizhu Wu, Fan Xia, Yujun Xie, Kai Xiong, Bin Xu, Dongpeng Yan, Haibo Yang, Qingzheng Yang, Zhiyong Yang, Lizhen Yuan, Wangzhang Yuan, Shuangquan Zang, Fang Zeng, Jiajie Zeng, Zhuo Zeng, Guoqing Zhang, Xiaoyan Zhang, Xuepeng Zhang, Yi Zhang, Yufan Zhang, Zhijun Zhang, Juan Zhao, Zheng Zhao, Zihao Zhao, Zujin Zhao, Ben Zhong Tang
    Progress in Chemistry. 2022, 34(1): 1-130. https://doi.org/10.7536/PC211037
        CSCD(13)      

    Aggregation-induced emission (AIE), conceptually coined by Prof. Ben Zhong Tang in 2001, refers to a unique photophysical phenomenon non- or weakly emissive luminogens in dilute solutions emit intensely upon aggregation. AIE can solve the aggregation-caused quenching problem that traditional fluorophores are suffering from and hold great technological values for practical applications. The past 20 years have witnessed the rapid development of AIE research, from the restriction of intramolecular rotations to restriction of intramolecular motions, and from AIE to aggregate science, and many original results have been achieved. In this review, we summarize the advances in the field of AIE and its related areas. We specifically discuss the recent progress in AIE area, including material classification, mechanism, concept derivation, property, applications, and challenges. It is hoped that this review will inspire more research into the molecular aggregate level and make significant advances in materials, chemistry and biological sciences.

    Contents

    1 Introduction

    2 AIE systems

    2.1 Small molecular AIEgens

    2.2 AIE cocrystals

    2.3 AIE polymers

    2.4 Metal-complex AIEgens

    3 Working mechanisms

    3.1 J-Aggregate

    3.2 Restriction of intramolecular motions (RIM)

    3.3 Blockage of nonradiative decay

    3.4 Aggregation-induced radiative decays

    4 The research branches of AIE

    4.1 Room-temperature phosphorescence

    4.2 Nonconventional luminophores

    5 Mechano-stimulated responsive AIE materials

    5.1 Mechanochromic luminescent

    5.2 Mechanoluminescence

    5.3 Other stimuli responses

    6 Technological applications

    6.1 Microscale dispersion evaluation of organic-inorganic composites

    6.2 Organic light-emitting diodes (OLEDs)

    6.3 Biological fields

    7 Conclusions and outlooks

  • Review
    Gao Chunmei*, Liu Mingzhu*, Lü Shaoyu, Chen Chen, Huang Yinjuan, Chen Yuanmou
    Progress in Chemistry. 2013, 25(06): 1012-1022. https://doi.org/10.7536/PC120953
    Baidu(15)   CSCD(24)        

    In recent years, due to an attractive application prospect of intelligent hydrogel in drug controlled release, gene transfer, tissue engineering and other fields, the research about intelligent hydrogel is very active. The synthetic hydrogels are mainly prepared by acrylic acid and its derivatives, acrylamide and its derivatives. Synthetic hydrogel has good stability, but its biodegradability and biocompatibility are poor. The raw materials of natural hydrogel include chitosan, sodium alginate, cellulose, starch, etc. These polysaccharides have good biocompatibility and biodegradability, and at the same time, they are cheaper and easier to manufacture. As a result, the natural hydrogels are superior to synthetic hydrogels for drug controlled release. Sodium alginate is an anionic linear polysaccharide composed of (1→4)-β-D -mannuronic acid (M) and (1→4)-α-L -guluronic acid (G). Each uronic acid unit contains a carboxyl group, under neutral or basic conditions, sodium alginate shows the properties of the polyanion electrolyte. In this review, the preparation methods of sodium alginate hydrogel are introduced in detail, including physical crosslinking, chemical crosslinking, enzymatic crosslinking, interpenetrating polymer network. The application of sodium alginate hydrogel in drug release is also introduced, including oral administration, subcutaneous administration, mucosal administration, pulmonary administration, transdermal administration. Finally, the problems in research and prospect of sodium alginate hydrogels are discussed. Contents
    1 Introduction
    2 Preparation of sodium alginate hydrogels
    2.1 Physical crosslinking
    2.2 Chemical crosslinking
    2.3 Enzymatic crosslinking
    2.4 Interpenetrating polymer network
    3 The application of sodium alginate hydrogel in drug release
    3.1 Oral administration
    3.2 Subcutaneous administration
    3.3 Mucosal administration
    3.4 Pulmonary administration
    3.5 Transdermal administration
    4 Problems and outlook

  • Review
    Xu Yuanhong, Xiong Xingquan, Cai Lei, Tang Zhongke, Ye Zhangji
    Progress in Chemistry.
    “Click chemistry”, introduced by Sharpless in 2001, becomes a new synthetic method used in areas such as drugs, polymers and materials rapidly because of its high efficiency, high selectivity and reliable characteristics. With the further research on click chemistry, the types of it are increasing continuously and the scope of application is also expanding. Radical-mediated or nucleophile-initiated thiol-ene reaction is a novel kind of click reactions, which shows the characteristics of click chemistry. Starting from the concept, characteristic and types of click chemistry, the mechanism and the wide applications of thiol-ene reaction in preparation of functional polymers and topologic macromolecules, polymeric materials surface modification and biomaterials are emphasized. Furthermore, the latest research based on thiol-ene chemistry is summarized. The prospects of thiol-ene reaction are also discussed. Contents
    1 Introduction
    2 Thiol-ene click reaction and mechanism
    3 Applications of thiol-ene click chemistry
    3.1 Synthesis of functional polymers
    3.2 Synthesis of topologies polymers
    3.3 Surface modification
    3.4 Biological fields
    3.5 Other fields
    4 Conclusions and outlook
  • Review
    Jinling Wang, Yuzhen Wen, Hualin Wang, Honglai Liu, Xuejing Yang
    Progress in Chemistry. 2021, 33(2): 263-280. https://doi.org/10.7536/PC200457
        CSCD(5)      

    Iron oxychloride(FeOCl) is a typical iron-based material with layered structure. It was discovered in the 1930s, and since the 1970s, has been extensively studied as a unique host in the field of supramolecular intercalation chemistry. The modification of FeOCl is much more flexible and easier than traditional iron(hydr)oxides due to the layered structure. In 2013, our group reported that FeOCl has excellent Fenton-like activity, which shows the promising potentialities for practical applications. Inspired by the properties of FeOCl and encouraged by our result, FeOCl and its intercalation compounds have recently attracted significant attention in catalysis and energy storage. In this review, the characteristics of pristine FeOCl and its intercalation compounds are summarized, especially intercalation-induced crystal and electronic structure changes. And then we focus on the contributions made by these materials toward advanced oxidation processes(AOPs), selective oxidation, electrode materials and other fields. Finally, challenges and future perspectives are reviewed in terms of structural design and the improvement of stability.

    Contents

    1 Introduction

    2 The preparation and structure of FeOCl

    2.1 Preparation

    2.2 Structure

    3 Intercalation behavior

    3.1 Intercalation mechanism

    3.2 Intercalation-induced structural evolution

    3.3 FeOCl intercalation compounds

    4 Applications

    4.1 Fenton-like catalysts

    4.2 Other AOP catalysts

    4.3 Selective oxidation catalysts

    4.4 Organic synthesis catalysts

    4.5 Electrode materials

    4.6 Other applications

    5 Conclusion and outlook

  • Wenhao Wu, Wen Lei, Liqiong Wang, Sen Wang, Haijun Zhang
    Progress in Chemistry. 2020, 32(1): 23-32. https://doi.org/10.7536/PC190704
      CSCD(4)        

    Single atom catalysts, as catalysts with atomic scale, have a wide range of applications in the fields of hydrogen production, CO oxidation, photocatalysts, etc. Extensive efforts of experimental/theoretical studies show that the strong metal support interactions and the changes in electronic structure are the main reasons for the high selectivity and catalytic activity of the single atom catalysts. This paper mainly summarizes the recent researches on the preparation methods including coprecipitation method, successive reduction method and wet-impregnation method, catalytic performance and high catalytic selectivity of single atom catalysts. And finally, the prospects for future investigations of single atom catalysts are proposed.

  • Review
    Liu Xiaobo Li Yuyan You Qidong
    Progress in Chemistry. 2009, 21(09): 1930-1938.
           

    Fatty acid biosynthesis is essential for bacterial survival. In recent years, components of this biosynthetic pathway have aroused wide concern. One fatty acid synthase, FabH (β-Ketoacyl-acyl carrier protein synthase Ⅲ), is a particularly attractive target which catalyzes the initial step of fatty acid biosynthesis. The pivotal role of this essential enzyme combined with its ubiquitous occurrence in bacteria and no homologous protein in human being has made it an attractive new target for the development of new antibacterial agents. Small molecules that inhibit FabH enzymatic activity have the potential to be candidates within a novel class of selective, nontoxic, broad-spectrum antibacterials. In this paper, fatty acid biosynthesis, recent advances in the research of FabH as well as related inhibitors are reviewed.

    Contents
    1 Introduction
    2 Structure of FabH
    2.1 FabH
    2.2 mtFabH
    3 FabH Inhibitors
    3.1 Thiolactomycin(TLM)
    3.2 Platensimycin and platencin
    3.3 Indole compounds
    3.4 Benzoylaminobenzoic acid derivatives
    3.5 Alkylsulfonyl substituents
    3.6 1,2-dithiole-3-ones
    3.7 Thiazolidine-2-One 1,1-dioxide
    3.8 Alkyl-CoA disulfides
    4 Conclusion and perspective

  • Invited Review
    Kelong Fan, Lizeng Gao, Hui Wei, Bing Jiang, Daji Wang, Ruofei Zhang, Jiuyang He, Xiangqin Meng, Zhuoran Wang, Huizhen Fan, Tao Wen, Demin Duan, Lei Chen, Wei Jiang, Yu Lu, Bing Jiang, Yonghua Wei, Wei Li, Ye Yuan, Haijiao Dong, Lu Zhang, Chaoyi Hong, Zixia Zhang, Miaomiao Cheng, Xin Geng, Tongyang Hou, Yaxin Hou, Jianru Li, Guoheng Tang, Yue Zhao, Hanqing Zhao, Shuai Zhang, Jiaying Xie, Zijun Zhou, Jinsong Ren, Xinglu Huang, Xingfa Gao, Minmin Liang, Yu Zhang, Haiyan Xu, Xiaogang Qu, Xiyun Yan
    Progress in Chemistry. 2023, 35(1): 1-87. https://doi.org/10.7536/PC220833
        CSCD(10)      

    Nanozymes, a new concept first proposed by Chinese scientists, is a class of nanomaterials with biocatalytic functions. Owing to their nanostructures, nanozymes can catalyze the substrates of natural enzymes and serve as enzyme substitutes. Since the first report in 2007, over 420 research groups from 55 countries have validated this phenomenon. The discovery of nanozymes demonstrates for the first time that nanomaterials may have a unique biological effect-enzyme-like catalytic activity. As a new material, nanozyme has both the physicochemical properties of nanomaterials and catalytic function similar to those of natural enzymes, with the benefits of both. Its nanostructure not only endows nanozymes with extremely effective catalytic activity but also renders them more stable and easier to mass production. The study of nanozymes is an example of interdisciplinary cooperation, being named as one of the 2022 top ten chemical emerging technologies by IUPAC.Nanozymes have become an emerging research focus due to the collaboration of experts from diverse fields worldwide such as chemistry, enzymology, materials science, biology, medicine, and theoretical calculations. Chinese scientists lead the way in this emerging field, investigating the structure-effect relationship of nanozymes, increasing their catalytic activity by 10 000 times, realizing rational design even surpassing natural enzymes, and developing the world's first nanozyme products, as well as publishing books on nanozyme science, releasing nanozyme terminology, and establishing Chinese/international standardization. Furthermore, the new field of nanozymes has attracted a substantial number of talented young multidisciplinary and interdisciplinary scientists who are driving its strong growth by discovering more than 1200 types of nanozymes and uncovering their catalytic mechanisms.It has also evolved from the initial application in detection to nanozyme catalysis medicine, sensor detection, green synthesis, new energy, environmental protection, and many other. This article provides readers with an overview of the significant advances in nanozyme research since its discovery, including newly identified natural nanozymes. Ultimately, our goal is to see nanozymes improve human health and inspire the growth of a new field of study as they go from an idea to new materials, to technology and to products.

  • Special issues
    Progress in Chemistry. 2009, 21(0203): 558-565.
    Baidu(163)        

    This paper makes a review on current research and development in contaminated soil remediation technologies at home and abroad, and also discusses demand for development in soil remediation technologies in China. This review indicates that systematic remediation technologies for contaminated soil have been developed, which included bioremediation, physical/chemical remediation and integrated remediation. Six research and development trends in soil remediation are summarized as follows: green and environmentally-friendly bioremediation, combined and hybride remediation, in situ remediation, environmentally functional material based remediation, equipment based site remediation, remediation decision supporting system and post-remediation assessment. It needs in China to develop wide-use, safe, cost-effective in situ bioremediation and physical/chemical stabilization technologies for agricultural farmland soil, to develop safe, land reusable, site-specific physical/chemical and engineering remediation technologies for heavily polluted industrial site, and to develop phytostabilization and eco-engineering remediation technologhies for controlling soil erosion and pollutants transport in mined area. Besides, it also needs to develop national guidelines, standards and management policies for contaminated soil remediation.

    Contents
    1 Introduction
    2 Current researches in contaminated soil remediation technologies
    2.1 Bioremediation technologies for contaminated soil
    2.2 Physical remediation technologies for contaminated soil
    2.3 Chemical or physico-chemical remediation technologies for contaminated soil
    2.4 Combined remediation technologies for contaminated soil
    3 Trends in development of contaminated soil remediation technologies
    3.1 Green and environmentally-friendly bioremediation technologies
    3.2 Combined and hybride remediation technologies
    3.3 In situ remediation technologies
    3.4 Environmentally functional materials based remediation technologies
    3.5 Equipment based site remediation technologies
    3.6 Remediation decision supporting system and post-remediation assessment technologies
    4 Opinions on R&D of contaminated soil remediation technologies in China
    4.1 Soil contamination situation in China
    4.2 Demands in R&D of contaminated soil remediation technologies
    5 Conclusion

  • Review
    Xu Xiujuan Qin Jingui Li Zhen
    Progress in Chemistry. 2009, 21(12): 2559-2567.
           

    Graphene is the first free-standing two-dimensional atomic crystal which has been found so far. Graphene is the building block for the sp2 carbon materials, such as zero-dimensional fullerenes, one-dimensional carbon nanotubes and three-dimensional bulk graphite. Also, it exhibits many remarkable electronic and mechanical properties. So it has become one of the hottest topics in the area of materials science and condensed-matter physics nowadays and also attracted more and more attention from scientists in diverse fields, such as chemistry, materials and so on. In this paper, we briefly introduce the research advances of graphene in recent years, including the preparation, reduction, chemical modification, application, perspectives and so on.

    Contents
    1 Introduction
    2 The discovery of graphene
    3 The preparation of graphene
    3.1 Chemosynthesis - "bottom-up"
    3.2 Synthesis from graphite
    4 The application of graphene
    4.1 Sensor
    4.2 Hydrogen storage
    4.3 Drug carrier
    4.4 Selective ion passage
    4.5 Electrode materials
    4.6 Others
    5 Perspectives

  • Review
    Liu Zongguang, Qu Shuxin, Weng Jie
    Progress in Chemistry. 2015, 27(2/3): 212-219. https://doi.org/10.7536/PC140921
    Baidu(6)   CSCD(7)        

    Inspired by the strong adhesive proteins secreted by mussels for attachment onto a wide range of substrates in wet condition, some reports indicated that polydopamine (PDA) possesses the similar structure and strong adhesion to those of adhesive proteins. PDA film can be formed on the surface of substrate in alkaline solution expeditiously, which results in the improvement of the hydrophily and the chemical versatility of substrate due to the hydrophilic hydroxyl and amino groups of PDA. The PDA layer can be used as an intermediate to anchor functional molecules on the surface through chemical bonds (by Michael addition or Schiff base reaction) or other physical bonds (hydrogen bond or van der Waals' force). PDA surface modification strategy is extremely useful because the process is simple and solvent-free. Moreover, due to the improvement of cell adhesion and biocompatibility, PDA has been widely used in surface modification of biomaterials. In this review, adhesive mechanism and application of PDA in surface modification of biomaterials have been summarized. In addition, the problems existed and the promising prospects of the application of PDA in biomaterials are pointed out.This review also provides useful information for the potential application of PDA in biomaterials and tissue engineering.

    Contents
    1 Introduction
    2 Formation process and mechanism of PDA
    3 Application of PDA
    3.1 Increasing the hydrophilicity of biomaterials with PDA
    3.2 Immobilizing drugs or growth factors with PDA
    3.3 Immobilizing silver nanoparticles with PDA
    3.4 Immobilizing proteins with PDA
    3.5 Increasing the biocompatibility of substrates with PDA
    3.6 Inducing mineralization on the surface of substrates with PDA
    3.7 Application of PDA in other aspects
    4 Conclusion and outlook

  • Review
    Qilu Yao, Hongxia Du, Zhang-Hui Lu
    Progress in Chemistry. 2020, 32(12): 1930-1951. https://doi.org/10.7536/PC200323
        CSCD(7)      

    Hydrogen has attracted much attention as a globally accepted clean energy carrier. Currently, the search of safe and efficient hydrogen storage materials is one of the most difficult challenges for the transformation to hydrogen powered society as a long-term solution for a secure energy future. Ammonia borane(NH3BH3, AB) has been considered to be a promising chemical hydrogen storage material due to its high hydrogen capacity(19.6 wt%), high volumetric hydrogen density(0.145 kgH2/L), and remarkable advantages in hydrogen storage and dehydrogenation performance. Hydrogen stored in ammonia borane can be released via pyrolysis, methanolysis, and hydrolysis routes. Among them, hydrolysis of ammonia borane can be easily controlled and without CO produced(easy to poison the catalyst) in the presence of an appropriate catalyst under mild conditions, which seems to be the most safe, effective, and convenient route for hydrogen storage applications. In this review, the properties and synthesis of ammonia borane are briefly introduced. The mechanism of hydrogen production from ammonia borane is described. Meanwhile, the research progress in catalytic hydrolytic dehydrogenation of ammonia borane for chemical storage is significantly reviewed. Moreover, the promoting effect of alkali for this hydrolysis reaction is concisely analyzed and the recovery of hydrolysate is also discussed.

    Contents

    1 Introduction

    2 Properties and synthesis of ammonia borane

    2.1 Properties of ammonia borane

    2.2 Synthesis of ammonia borane

    3 Mechanism of catalytic ammonia borane hydrolysis

    4 Metal catalysts for the hydrolysis of ammonia borane

    4.1 Noble metal catalysts

    4.2 Non-noble metal catalysts

    4.3 Synergistic metal catalysts

    4.4 Other catalysts

    5 Promoting effect of alkali on catalytic ammonia borane hydrolysis

    6 Regeneration of ammonia borane

    7 Conclusion